Ship-propelling means



Jan. 14, 1930- R. wxERNlKowsKl SHIP PROPELLING MEANS Filed April 15, 1929 zz T m- Patented Jan. 14, 1930 UNITED STATES RERAD WIERNIKoWsKI, or NEW YoRK, N. Y.

SHIP-PROPELLING- MEANS Application filed April 15, 1929. Serial No. 355,018.

This invention relates to improvements in ship propulsion particularly to a device for increasing the driving power of the propel- 1ers by means of a body of water under pres- 5 sure directed against propellers for accelerating the speed of the ship considerably.

Another object of my invention is the provision of a pair of tubes having their inlets forwardly directed to both sides of the ships lo bow and tending to break the water resistance encountered at the bow during the forward motion of the ship. The rear openings or outlets of the tubes adapted to direct the stream of water entering` at the inlets of the tubes under considerable pressure against the blades of the propellers.

A further object of my invention is the provision of a pair of tubes laterally disposed within a ships keel, and having their forwardly directed inlets equipped with suitable gratings to protect the tubes against the entrance of ice or dbris and other matter tending to injure or damage the ship or its propellers.

A still further object of'my invention is the provision of a comparatively simple and Y inexpensive device for accelerating the speed of the ship which can vconveniently be installed in any ship without necessitating material change, and which will considerably cheapen the cost of operation by causing a saving in fuel and in running time.

With these ends in View, the device according to my invention consists of a number of tubes having a diameter selected to suit the size of the vessel.

These and other objects and advantages of my invention will become more fully known as the description thereof proceeds,

and will then be specifically defined in the appended claim.

In the accompanying drawing, forming a material part of this disclosure:

Fig. 1 is a side elevation of a ship constructed according to my invention.

Fig. 2 is a fragmentary sectional detail view of a ships keel showing one of the tubes.

Fig. 3 is a fragmentary side elevation of a ships keel showing one of the propellers,

and the inlet and outlet openings of a tube.

five and siX feet.

The forward ends or inlets 13of the tubes` project preferably atboth sides of the bow ofthe ship tending to' break to some degree the water resistance encountered during the forward movement of the ship. If desired, the inletsy may be formed Vas indicated at 14C, Fig. 11, Vand equipped with a protecting grating 15 or the like consisting of bars of substantially triangular cross-section for preventing ice, dbris or the like to enter the tube inlets, and liable to damage the propellers. Y

These inlets, when provided with the protecting gratings must have a larger diameterV than the tubes themselves in order to not materially change the intake capacity and to ensure and maintain a uniform pressure corresponding to the width of the outiets of the tubes at the propeller end thereof.

rlhe ship here shown as an example is equipped at its stern with the usual twin propellers 16 and 17, and propellers 18, the latter directl behind the rear outlets 19 of the tubes directing the column of water leaving the tubes under pressure against the propeller blades.

The operation of my device will be evident from its foregoing description by simultaneous inspection of thev drawing, and it will be clear that the water rushing into the tubes at the inlets to both sides of the ships bow will enter the tubes under pressure controlled by the resistance which the water offers to the forward motion of the ship, so that increased velocity of the ship will also increase the pressure of the water entering the tubes, rushing through the same, and

2 Y '1 V- Y 1,743,508

discharged at the tubev outlets against the-- blades of the propellers, thus materially increasing the speed of the vessel and ell'ecting a considerable saving :of fuel and Vin the running time of the ship and the expense inci- Y dent thereto. `The gratings will eiectively prevent the-entrance of dbris, ice,etc., thus protecting'tubes and propellers against damage thereby. n

It will be understood that I have described and shown the preferred'forrn v'of my inven tion asfan examplev of thel many possible Ways to practicallyconstruct the same, and that I do noti-Wish to Ylimit myself 1'to Athe exact construction shown, but desire to preserve myright to make'changes'WithinY-the scope. of the appended claim" Without 1de'- 1 parture from the invention. l 1

' 1 Having thusfdescribedmy inventio-lnwhat I claim as new and desire to secure by @Letters Patent, is: v Y y In a ship including its keel, apair Vof tubes embedded in said keelpthe forwardends or inlets of said tubes projecting at both sides i of the ship for breaking the Waterrresistance,

a grating of bars having'substantiallytriangular cross-section in each tube inlet, said inlets of a greater diameter than'the tubes, outboard propellers ,having `:their yblades 'lo` cated directly behind the rear outlets ofsaid tubes torbe propelled by the water Iissuing under pressure from said outlets controlled by the speed of the vessel. Y v

In Witness whereof I have `signed my nalneltothis specilica'tion.A

RERAD `WIERNIKOVVSKI. 

